CFR > Title 40 - Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER F—RADIATION PROTECTION PROGRAMS (Parts 190–197) > PART 191—ENVIRONMENTAL RADIATION PROTECTION STANDARDS FOR MANAGEMENT AND DISPOSAL OF SPENT NUCLEAR FUEL, HIGH-LEVEL AND TRANSURANIC RADIOACTIVE WASTES > SUBPART B—Environmental Standards for Disposal (§191.11 to §191.17) > 191.17—Effective date.